Cam and Groove Coupling Socket Body Material Aluminum Type D Coupling Size 5 in Female Connection Type NPT Hose Fitting Size 5 in FNPT Max Working Pressure @ 70 F 75 psi Socket Inside Diameter 5 3/4 in Gasket Material Nitrile Overall Length 3 21/32 in Includes Locking Arm Yes Thread Size 5 In.-8